Driving mechanism for power washing machines



H. H. TOLL AND F. C. DUFF.

-DHiVlNG MECHANISM FOR POWER WASHING MACHINES.

APPLICATION FILED OCT. 13, I919. 41593 358 Patented Jan. M}, 1922.

2 SHE ETSSHEET I.

A TTORNE Y.

H. H. TOLL AND F. C. DUFF.

. nmvme MECHANISM FOR POWER WASHINQ MACHINES.

APPLICATION FILED OCT-13, 1919.

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Ra un- 2w MW ATTORNEY.

HEE'MAN H. TOLL AND FRANK C. DUFF,

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DRIVING- IiIECHANISLVf 1 E EIR- WASHING MACHINES Specification of Letters Patent.

Patented Jan. it), 19922.

Application filed (ictooer 13. 1918. Serial No. 330,303.

To aZZ w hom it may concern Be it known that we, HERMAN H. TOLL' and FRANK C. DUFF, citiZens of the Jnited States of America and residents of Clarindm Page county Iowa, have invented. a new and useful Driving Mechanism for Power fashing Machines, of which the following is a specification.

The object of this invention is to provide an improved mechanism for transmitting power from a prime mover having a shaft rotating continuously in one direction to a follower adapted for alternating rotary motion.

A further object of this invention is to provide an improved construction and arrangement for driving mechanism for operating a washing machine of the cylinder type.

A further object of this invention is to provide improved means for reversing the direction of rotation of the follower device periodically.

A further object of this invention is to provide a reversing mechanism capable of adjustment or alteration by the substitution of a simple part to vary the extent of rotation of the follower between successive reversals;

Our invention consists in the construction. arrangement and combination of elements hereinafter set forth, pointed out in our claims and illustrated by the accompanying drawing, in which- Figure 1 is a side elevation, partly in section, illustrating a power washing machine embodying our improved driving mechanism. Figure 2 is an end elevation of the same machine. Figure 3 is a detail section, on an enlarged scale taken through the reversing gear box substantially on the line 3-3 of Figure 2. Figure i is an elevation partly in section of the gear box with the reversing disk and outer plate removed, taken substantially on the line 45-4: of Figure 3.

1 Figure 5 is an edge view and Figure 6 an inner face elevation of the reversing disk detached. Figure 7 is a cross-section. on a further enlarged scale, on the line 77 of Figure 4:.

In th construction of the machine and mechanism as shown the numeral 10 designates a suitable frame. formed preferably of angle iron and rectangular in plan and elevation. A platform 11 is carried. by the lower portion of the frame 10 a prime mover 12, such as an electric motor, is mounted on said platform near one end of the frame. and has its armature shaft 13 extending longitudinally and centrally thereof. A cylinder shaped tank l i is mounted in the upper portion of the frame 10 and is supported by trunnions 15 arranged centrally of its sides. The tank is provided with a sliding cover 16. Within the tank i i a perforated sheet metal drum 1'? is mounted and is adapted for rotary oscillation and also for continuous rotary motion on its longitudinal axis. The tank 14: is water-tight and is adapted to contain a suitable washin tin-id and the drum is adapted to contain clothes to be washed or otherwise treated in the fluid,- and is provided with suitable opening and closing means (not shown). Shafts 18) one of which is shown in Figure 1, are tired to end portions and centrally of the drum 1'7 and are journaled in the ends of the tank, and the shaft at one end projects through said tank and terminates in a clutch member 19.

A drivingshaft is arranged longitudinally at one end of the top of the frame 10 and journaled in a bearing 21. thereon, said shaft being provided at its inner end with a clutch member '22 adapted to engage at times the clutch member 19 of the drum shaft. The driving shaft 20 is adapted for longitudinal inoven'ient in its bearing to effect engagement and disengagement of the clutch member 22 relative to the member 19. such movement being controlled by a shifting lever 23. Feathered on the shaft 20 a bevel gear in a housing 24 which is in mesh with and adapted to be driven by a bevel gear contained in a housing 25, the latter gear being fixed to the upper end of a shaft 26. The lower end of the shaft 26 enters a gear housing 27 carried by the lower portion of the frame, at one side of the center thereof. A shaft 28 is arranged transversely and is adapted to be driven from the motor shaft 13 by means of any suitable gearingcontained in a housing 29, the other end of said shaft 28 entering the gear housing 27. A double bevel gear is mounted for rotation in the housing 27, as on a stub shaft or spindle 30,

and the outermost gear 31 thereof is'in mesh with and adapted to be driven by a bevel pinion 3:2 fixed to the shaft 28 The innermost member of the double gear is in mesh with opposed bevel pinions 3e, '35 loosely mounted. on the shaft 26. The'onter side of the housing 27 is closed bya removable plate 36. A clutch block 37 is mounted on and fixed to the shaft 26 between the opposed bevel pinions 34, 35, and a double pawl 38. The double pawl is arranged for disk 41 is formed with an inwardly oscillation in a plane passingthrough the axis of the shaft26, and'is so arranged that when one end is in engagement with a lug or shoulder 40 of one of the pinions 34 or 35, the opposite end is clear from the lug or shoulder'of the other of said pinions. In this manner the shaft 26 is caused to rotate with that bevel pinion 34 or 35 with which the pawl is engaged, such engagement clutchin I said pinions selectively to the shaft. 7 tripping disk 41 is pivoted at its center by a bolt 42 to the inner face of the housing plate 36,"said pivot being opposite to the center of'the pawl 38. The tripping projecting peripheral flange 43 which is unbroken throughout a portion of the periphery and throughout the remaining portion thereof is notchedto form ratchet teeth 44. The outstanding end of the pawl 38, that is to say the end which is not in engagement with the hub of a bevel pinion 34 or 35, travels through an orbit, in the'rotation of the shaft 26, which intersects the plane of the flange 43 and ratchet teeth 44. Each time the outstanding end of the pawl 38 is carried across the plane of the teeth 44 it encountersthe straight side of one of said teeth and pr duces a step forward in the rotation of the tripping disk 41 in one direction or the other, depending upon. the direction in which the shaft '26 is rotating at the time. This occurs until the disk41 is'rotatedto the point where the outstanding end of the pawl engages the solid portion of the flange 43,

i the direction shaft 20, and

whereupon said flange causes a tripping of the pawl 38, or an oscillation onthe pivot 39, forcing the then outstanding end intoward the-shaft and the opposite end out.

This movement of course has the effect of disengaging the pawl and shaft from the bevel pinion 34 or 35 which hadbeen the driver andengaging said members with the other of said bevel 'pinions, thus reversing of rotation of the shaft 26, drum 17 providing the clutch members 22 and 19 are in engagement. Thus periodically the direction of rotation of the clothes drum is reversed, and the number of revolutions in each direction he V tween successive reversals depends upon the number of teeth in the tripping plate 41.

mosses It is plain that trippingplates may be provided havingvarying numbers of teeth, to

provide the desired number of revolutions .7

oscillation of said pawl when sufficient pre'ssure is applied to either end. 7

The tank 14 is also designed to be turned to upright position on its trunnions15, the clutch member 19 of the drum shaft engaging a clutch member 47 of a driving mechanism designated generally by the numeral 48, located cent-rally of the-frame on the platform 11. The driving mechanism 48 is operated from the motor shaft 13 andis controlled by a foot pedal 49, being designed to rotate the clothes drum 17 continuously in one direction at "a high rate ofspeed-to dry the clothes therein by centrifugal force. This mechanism forms no part of ouri pres ent invention butis illustrated, described and claimed in our companion application filed September 5, 1919,Serial'l llunber32l, 806, to which application referencejhereby is made.

A plurality of pans 50 are carried the.

lower portion of the frame 10'and are adapted to contain various kinds of-w'ashing fluids, such'as suds, rinse and blue water. A centrifugal pump 51 is carried by' the platform 11' and is adapted to'be' driven by the motor shaft 13 to 'raisewater selectively; from the pans 50 to the tank 14 through a pipe 52, the operation of said pump being controlled by a clutch lever 53. This mechanism; however, forms no part of our present invention but isillust'rate-d, described and claimed in our companion application filed October'13, 19l9,Serial Number 330,- 304,to which application reference hereby is made.

Water is adapted to be drawn int'urn from each of the pans 50 to th'e'tank 14 and the clothes to be washed are treated successively therein tothe a'ction of each kind'of' washing. fluid, the drum 1? being driven in thenianner and by the *means hereinbefore descr1bed,'1n the horizontal positlonshown;

After each such treatment the tank is turned fluid a removed pended claims. without spir t of our invention.

l v ired the frame may be enla eaten to any -:lesired e being driven from one source of This provides a .znachine foi ndries do my family washing. and permits seeping: each washing separate from theothers. thus obviating the mixing of clothes and effectin a saving of time in markingand sorting he same.

Vi e claim as our invention- A driving; mechanism for power washlnachines, comprising a power shaft. a bevel geardriven by said power shaft con tinuously in one direction. a follower shaft. opposed bevel pinions loosely mounted on said follower sh ft in mesh with said bevel gear. a clutch member mounted on and fixed to said follower shaft between the bevel pinions. a double pawl pivoted on said clutch member and adapted for selective operative engagement with said bevel pinions. and a rotatable tripping member adapted to err gage said pawl. and shift the same after a. predetermined number of revolutions of said follower shaft.

2. A driving mechanism for power washlug: machines. comprising a power shaft a bevel gear driven from said power shaft continuously in one direction, follower shalt. opposed bevel pinions loosely .iounted on said follower shaft in mesh with said bevel gear. a clutch member mounted on. and fixed to said follower shaft between the bevel pinions. a pawl pivoted at its center on said clutch member. each of said bevel pinions being formed with means for Q1 pgeinent by said pawl. whereby said pinioi may be selectively clutched to said follower shaft. and a tripping plate. rotatably mounted and formed with a plurality of notches ada ited to permit passage of said pawl in successive revolutions of said follower shaft and also formed withmeans adapted for sul'isequent en g'anenwnt with and oscillation of sai d pawl.

3. A driving mechanism power washing machines. comprising a power shaft. 21 bevel gear driven from said power shaft continuously in one direction. a follower shaft opposed bevel pinions loosely mounted on said follower shaft in mesh with said If -l gear. a clutch member mounted on and fixed to said follower shaft between said bevel pinions. a pawl pivoted between its ends on said clutch member and adapted for selective operative engagement with said bevel 1. inc

pinions, and movable means independent of said bevel gear for oscillating said pawl to reverse its relation to said piniojos.

A driving mech for power washmachines. comprising a power shaft a bevel driven from said power shaft continuously in one direction. a follower shaft, 0 osed bevel. pinions loosely mounted on said follower shaft in mesh with said bevel gear. a clutch member fixed to said shaft betvv en said bevel pinions. a pawl l b livote etween its ends on said clutch mem-' oer and adapted for selective operative engagement with said bevel pinions movable means independent of said gear for oscillating said pawl periodically to reverse its relation to said pinions. and a yielding pressure device tending to hold said pawl in either position.

5. A driving mechanism for power washing machines. comprising a power shaft a bevel. gear driven from said power shaft continuously in one direction, a follower shaft, opposed bevel pinions loosely mounted on said follower shaft in mesh with said bevel gear. a clutch 'member fixed to said follower shaft between said bevel pinions. a pawl pivoted between its ends on said clutch. member and acapted for selective operative engagement with said bevel pinions and rotatable means operative through the rotation of said follower shaft for engaging and reversing; the position of said pawl.

6. A driving mechanism for power washing machines comprising a power shaft. a bevel gear driven from said power shaft, a follower shaft, opposed bevel pinions loosely mounted on said follower shaft in mesh with said bevel gear. a pawl pivoted at its center midway between and adapted for selective operative engagement with. said bevel pinions. and a tripping member adapted to engage the nonoperative end of said pawl and Slll'ji? the same after a predetermined number of revolutions of said follower shaft.

7. A driving mechanism for power washing machines. comprising a power shaft, a bevel gear driven from said power shaft, a follower shaft. opposed bevel ninions loosely mounted on said follower shaft in mesh with said bevel gear. a pawl pivoted at its center minwav between and adapted for selective operative engagement-with said bevel pinions, and a tripping member formed with a peripheral flange provided with a series of notches throughout a portion of its length the outstanding; end of said pawl being adapted to engage in said notches successively and move said tripping member a step rotatively for each revolution of the follower shaft until said pawl encounters the solid portion of said flange. which on counter produces an oscillation of said pawl and reversal of movement of said follower shaft and tripping .inernben said bevel gear a pawl pivoted at its center midwa between and adapted for seleetive operative engagementwith said bevel pinions, and a removable and replaceable tripping member mounted for rotation and "formed with a peripheral flange having a series of notches throughout a portion of its 1 ,eoeese lengtlnthe outstanding end of said pawl being adapted for successive engagement in said notches tomove' said tripping member 15 to a position for engagement of the, solid portion of said flange by said pawl to effect an oscillation and reversal of said pawl.

Signed at Clarinda, in'the county of Page and State oflowa, this 8th day of Septem- 20 her, 1919.

HERMAN H'TOLL FRANK o. DUFF, 

